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3 part a what is the definition of physical

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3.Part AWhat is the definition of physical weathering?Rocks fall apart.Mechanical processes break substances into smaller pieces.
Mechanical processes add chemicals to create new substances.Rock is dissolved by chemicals.Chemical reactions produce new substances.CorrectAll physical weathering does is break rocks and minerals apart. Nothing more is needed.Part BUsing the picture of the Entrada Sandstone in Figure 1, try to identify the evidence of physical and/orchemical weathering present.
Part CWhich of the three images in Figure 2 would be most susceptible to chemical weathering and why?
Part D
Which of the following is an example of chemical weathering?
Part EHow does physical weathering cause chemical weathering to be more effective?When the composition of a rock changes, it can be weaker and more likely to break into smaller pieces.Physical weathering changes the type of material that is present and so makes chemical weatheringhappen faster.Physical weathering causes the size of the grains of rock to increase.Physical weathering acts on its own and has no impact on chemical weathering.When a rock is physically broken into smaller pieces, there is more surface area on which chemicalweathering can occur.
Correct4.Part AThe chemical weathering process known as oxidation would be most effective in the breakdown of whichof the following Earth materials?
Part BThe chemical weathering process known as dissolution is most effective in the breakdown of which ofthe following minerals?

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